210320571073 has 2 divisors, whose sum is σ = 210320571074. Its totient is φ = 210320571072.

The previous prime is 210320571017. The next prime is 210320571077. The reversal of 210320571073 is 370175023012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182612638224 + 27707932849 = 427332^2 + 166457^2 .

It is a cyclic number.

It is not a de Polignac number, because 210320571073 - 2²¹ = 210318473921 is a prime.

It is not a weakly prime, because it can be changed into another prime (210320571077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105160285536 + 105160285537.

It is an arithmetic number, because the mean of its divisors is an integer number (105160285537).

Almost surely, 2^210320571073 is an apocalyptic number.

It is an amenable number.

210320571073 is a deficient number, since it is larger than the sum of its proper divisors (1).

210320571073 is an equidigital number, since it uses as much as digits as its factorization.

210320571073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 31.

Adding to 210320571073 its reverse (370175023012), we get a palindrome (580495594085).

The spelling of 210320571073 in words is "two hundred ten billion, three hundred twenty million, five hundred seventy-one thousand, seventy-three".